the car wont rev up at all i try to rev it up at idel and it falls on its face, i wont rev up at all no matter what. i just put the motor in and i started iy up i ides fine but it wont rev. i have a chiped p28, it was chiped by locashraceing. everything is hooked up and pluged in except for the vtec oil pressure switch. i have no clue what it can be.

make sure you installed the TPS sensor correctly, if you didnt, then the ECU does not know how much fuel to give your motor at the correct Throttle Positions, Ill bet that this is your problem, one time i did a swap, on a 4th gen DX, and i forgot to switch the two outer wires on the TPS sensor, and the ecu thought the car was at WOT when it was Idleing and idleing when it was at WOT, at around 3500 RPMs, it would just about stall and then it would lunge out of it, just make sure your TPS is installed Correctly, then get back to us.

i finnaly figuerd it out and got my car running good, i had the wrong connector hocked up to the IAC. i swaped the connector and hocked up the vtec oil pressur switch and the car runs beautyfuly. now i just have to brak in the new moter.